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15
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Determine the circumference of a semi-circle with a diameter of 16 meters.
Answer: 25.12 meters
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15
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If the area of a circle is 154 square centimeters find its radius.
Answer: 7 cm
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A circular garden has a circumference of 36 meters. Find the radius of the garden
Answer: 5.73 meters
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trap
No points!
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fairy
Take points!
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gift
Win 15 points!
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lifesaver
Give 15 points!
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If the area of a semi-circle is 28.26 square centimeters find its diameter.
Answer: 6 cm
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If the circumference of a circle is 18.84 cm what is its diameter?
Answer: 6 cm
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If the diameter of a semi-circle is 12 cm what is the radius?
Answer: 6 cm
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baam
Lose 20 points!
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shark
Other team loses 20 points!
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fairy
Take points!
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baam
Lose 20 points!
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15
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Calculate the perimeter of a shape made up of four quarter-circles with a common center.
Answer: 3.14 times the radius of one quarter-circle.
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A semi-circular garden has a circumference of 22 meters. Calculate its radius.
Answer: 3.50 meters
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If the area of a quarter-circle is 19.63 square centimeters find its radius.
Answer: 2.80 cm
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Find the area of a circle with a radius of 6 cm.
Answer: 113.10 cm²
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If the radius of a quarter-circle is 9 cm find its circumference.
Answer: 14.13 cm
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Determine the area of a quarter-circle with a radius of 5 meters.
Answer: 9.82 m²
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eraser
Reset score!
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fairy
Take points!
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25
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fairy
Take points!
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banana
Go to last place!
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15
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What is the relationship between the diameter and the circumference of a circle?
Answer: C = πd
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